Chapter 8
Algebra for College Students · 237 exercises
Problem 25
Graph each quadratic function, and state its domain and range. $$y=-\frac{1}{3} x^{2}+5$$
7 step solution
Problem 25
Solve each equation by using the quadratic formula. $$\frac{1}{3} t^{2}-t+\frac{1}{6}=0$$
6 step solution
Problem 26
Graph each quadratic function, and state its domain and range. $$y=-\frac{1}{2} x^{2}+3$$
7 step solution
Problem 26
Solve each equation by using the quadratic formula. $$\frac{3}{4} x^{2}-2 x+\frac{1}{2}=0$$
7 step solution
Problem 27
Graph each quadratic function, and state its domain and range. $$h(x)=(x-2)^{2}$$
6 step solution
Problem 27
Solve each equation by using the quadratic formula. $$2 t^{2}-6 t+5=0$$
7 step solution
Problem 28
Graph each quadratic function, and state its domain and range. $$h(x)=(x+3)^{2}$$
7 step solution
Problem 28
Solve each equation by using the quadratic formula. $$2 y^{2}+1=2 y$$
5 step solution
Problem 29
Find the vertex for the graph of each quadratic function. $$f(x)=x^{2}-9$$
5 step solution
Problem 29
Solve each equation by using the quadratic formula. $$-2 x^{2}+3 x=6$$
6 step solution
Problem 30
Find the vertex for the graph of each quadratic function. $$f(x)=x^{2}+12$$
4 step solution
Problem 30
Solve each equation by using the quadratic formula. $$-3 x^{2}-2 x-5=0$$
6 step solution
Problem 31
Find the vertex for the graph of each quadratic function. $$y=x^{2}-4 x+1$$
3 step solution
Problem 31
Solve each equation by using the quadratic formula. $$\frac{1}{2} x^{2}+13=5 x$$
6 step solution
Problem 32
Find the vertex for the graph of each quadratic function. $$y=x^{2}+8 x-3$$
4 step solution
Problem 32
Solve each equation by using the quadratic formula. $$\frac{1}{4} x^{2}+\frac{17}{4}=2 x$$
8 step solution
Problem 33
Find the vertex for the graph of each quadratic function. $$f(x)=-2 x^{2}+20 x+1$$
4 step solution
Problem 33
Find \(b^{2}-4 a c\) and the number of real solutions to each equation. $$x^{2}-6 x+2=0$$
3 step solution
Problem 34
Find the vertex for the graph of each quadratic function. $$f(x)=-3 x^{2}+18 x-7$$
4 step solution
Problem 34
Find \(b^{2}-4 a c\) and the number of real solutions to each equation. $$x^{2}+6 x+9=0$$
3 step solution
Problem 35
Find \(b^{2}-4 a c\) and the number of real solutions to each equation. $$-2 x^{2}+5 x-6=0$$
4 step solution
Problem 35
Find the vertex for the graph of each quadratic function. $$y=x^{2}-x+1$$
4 step solution
Problem 36
Find \(b^{2}-4 a c\) and the number of real solutions to each equation. $$-x^{2}+3 x-4=0$$
3 step solution
Problem 36
Find the vertex for the graph of each quadratic function. $$y=3 x^{2}-2 x+1$$
5 step solution
Problem 37
Find all intercepts for the graph of each quadratic function. $$f(x)=16-x^{2}$$
3 step solution
Problem 38
Find \(b^{2}-4 a c\) and the number of real solutions to each equation. $$v^{2}=3 v+5$$
4 step solution
Problem 38
Find all intercepts for the graph of each quadratic function. $$f(x)=x^{2}-9$$
4 step solution
Problem 39
Find \(b^{2}-4 a c\) and the number of real solutions to each equation. $$y^{2}-\frac{1}{2} y+\frac{1}{4}=0$$
5 step solution
Problem 39
Find all intercepts for the graph of each quadratic function. $$y=x^{2}-2 x-8$$
4 step solution
Problem 40
Find \(b^{2}-4 a c\) and the number of real solutions to each equation. $$\frac{1}{2} w^{2}-\frac{1}{3} w+\frac{1}{4}=0$$
3 step solution
Problem 40
Find all intercepts for the graph of each quadratic function. $$y=x^{2}-x-6$$
2 step solution
Problem 41
Find all intercepts for the graph of each quadratic function. $$f(x)=-4 x^{2}+12 x-9$$
5 step solution
Problem 42
Find \(b^{2}-4 a c\) and the number of real solutions to each equation. $$9-24 z+16 z^{2}=0$$
3 step solution
Problem 42
Find all intercepts for the graph of each quadratic function. $$f(x)=-2 x^{2}-x+3$$
4 step solution
Problem 43
Find \(b^{2}-4 a c\) and the number of real solutions to each equation. $$9-24 z+16 z^{2}=0$$
4 step solution
Problem 43
Find the vertex and intercepts for each quadratic function. Sketch the graph, and state the domain and range. $$f(x)=x^{2}-x-2$$
7 step solution
Problem 44
Find \(b^{2}-4 a c\) and the number of real solutions to each equation. $$12-7 x+x^{2}=0$$
4 step solution
Problem 44
Find the vertex and intercepts for each quadratic function. Sketch the graph, and state the domain and range. $$f(x)=x^{2}+2 x-3$$
5 step solution
Problem 45
Find the vertex and intercepts for each quadratic function. Sketch the graph, and state the domain and range. $$g(x)=x^{2}+2 x-8$$
7 step solution
Problem 46
Find \(b^{2}-4 a c\) and the number of real solutions to each equation. $$-6 x^{2}-5=0$$
3 step solution
Problem 46
Find the vertex and intercepts for each quadratic function. Sketch the graph, and state the domain and range. $$g(x)=x^{2}+x-6$$
6 step solution
Problem 47
Find \(b^{2}-4 a c\) and the number of real solutions to each equation. $$x^{2}=x$$
4 step solution
Problem 47
Find the vertex and intercepts for each quadratic function. Sketch the graph, and state the domain and range. $$y=-x^{2}-4 x-3$$
5 step solution
Problem 48
Find \(b^{2}-4 a c\) and the number of real solutions to each equation. $$-3 x^{2}+7 x=0$$
3 step solution
Problem 48
Find the vertex and intercepts for each quadratic function. Sketch the graph, and state the domain and range. $$y=-x^{2}-5 x-4$$
5 step solution
Problem 49
Find the vertex and intercepts for each quadratic function. Sketch the graph, and state the domain and range. $$h(x)=-x^{2}+3 x+4$$
6 step solution
Problem 50
Find the vertex and intercepts for each quadratic function. Sketch the graph, and state the domain and range. $$h(x)=-x^{2}-2 x+8$$
6 step solution
Problem 51
Find the vertex and intercepts for each quadratic function. Sketch the graph, and state the domain and range. $$a=b^{2}-6 b-16$$
6 step solution
Problem 52
Find the vertex and intercepts for each quadratic function. Sketch the graph, and state the domain and range. $$v=-u^{2}-8 u+9$$
6 step solution
Problem 53
Find the maximum or minimum value of \(y\) for each function. $$y=x^{2}-8$$
4 step solution