SUMMATIVE TEST GENERAL MATHEMATICS

Find the roots of the parabolic function f(x) = 14 + 5x − x2 from its graph.

• -7 and -2

• -7 and 2

• -2 and 7

• 2 and 7

The above could be the graph of:

• A linear function

• A quadratic function

• An absolute value function

• An exponential function

Which of the following relations is not a function?

• $f\left(x\right)=\ -1.25\left(\sqrt{16-x^2}\right)$

• $f\left(x\right)=\ 1.25\left(\sqrt{16-x^2}\right)$

• $f\left(x\right)=\ \pm1.25\left(\sqrt{16-x^2}\right)$

• $f\left(x\right)=\ 1-1.25x$

Which of the following relations is not a function?

• $f\left(x\right)=x^4$

• $f\left(x\right)=\pm^4\sqrt{x^{ }}$

• $f\left(x\right)=^3\sqrt{x^{ }}$

• $f\left(x\right)=x^3$

Tags

CCSS.8.F.A.1

The graph shows the function f(x) = 0.5x² in blue and another function g(x) in red.

Which of the following could be the equation for g(x)?

• $g(x)=-0.5x^2+2$

• $g(x)=-0.5x^2−2$

• $g(x)=0.5x^2−2$

• $g(x)=0.5x^2+2$

 $Whichofthefollowingisthesolutionofthe\ equation\ 3-\frac{12}{x}=-2-2x$  

• x=-6

• x=-4

• x=-3

• x=-1

Tags

CCSS.HSA.REI.A.2

Solve the inequality 6 < 9 − 2x < 8

• 0.5 < x < 1.5

• 2 < x < 6

• -6 < x < -2

• -1.5 < x < -0.5

Which one of the following points satisfies both inequalities?

2y < x − 3

x + 3y ≤ 7

• (5, 0)

• (6, 1)

• (7, 2)

• (8, 3)

Which graph illustrates the inequality 3x − 4y > 12 ?

• A

• B

• C

• D

Tags

CCSS.HSA.REI.D.12

Which inequality does the shaded part of the graph illustrate?

• 5x + 2y > 10

• 5x + 2y ≤ 10

• 5x + 2y ≥ 10

• 2x + 5y ≥ 10

Tags

CCSS.HSA.REI.D.12