Q2 Exam Review (Alg)

What is the equation that represents the x-axis?

• x = 0

• y = 0

• y = x

• None of the above

True of False?

The y - axis is a function.

• True

• False

What is the slope of the line that contains (-5, 7) and (-3, 7)?

• 2

• -2

• 0

• Undefined

Find the value of "r" so the line has a slope of "-2"

(r, -8) , (-14, 12)

• 4

• -24

• 26

• None of the above

What is the slope of any line PERPENDICULAR to the y-axis?

• 0

• Undefined

• 1

• None of the above

Write in scientific notation:

(5.1 x 10^-4) (4.3 x 10^-3)

• 2.193 x 10^-6

• 21.93 x 10^-7

• 9.7 x 10^-7

• None of the above

Simplify:

(3x - 4)² - (x - 9)

• 9x² - x + 25

• 9x² - 25x + 7

• 9x² - 25x + 25

• None of the above

True/False:

"x/y = 6" is a linear equation

• True

• False

Write in slope-intercept form:

3/5y + 6x = 3

• y = 1/10x - 5

• y = -10x + 5

• y = 5/3 x - 3

• None of the above

If f(x) = 1/2 x - 5 and g(x) = -x² + x

f[g(-4)] =

• -15

• 15

• -11

• None of the above