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- StudyBlue
- Minnesota
- University of Minnesota - Twin Cities
- Mathematics
- Mathematics 1151
- Lyubeznik
- Precalculus

Jamie M.

The x-intercepts of the graph of an equation are those x-values for which ____.

y equals zero.

On the real number line the origin is assigned the number ___.

0

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What is the y-intercept of the equation y = x+7?

7

If (3,b) is a point on the graph of y=4x, what is b?

12

The slope of a vertical line is ___, the slope of a horizontal line is ___?

Undefined, zero.

A horizontal line is given by an equation of the form ___, where b is the ____.

y=b

b= the y-intercept

b= the y-intercept

True or false, the slope of the line 2y=3x+5 is equal to 3?

False, it is equal to 3/2

The lines y=2x+3 and y=ax+2 are perpendicular is a= ___?

-1/2

Find the slope and y-intercept of the line y=2x+3.

Slope=2

y-intercept=3

y-intercept=3

Determine if these two lines are parallel, perpendicular, or nether.

y=2x-3

y=2x+4

y=2x-3

y=2x+4

Parallel

To complete the square of x^2+10x, you would (add/subtract) the number ___.

25

What is the equation of the unit circle?

x^2+y^2=1

Find the equation of a circle with center at (3,4) and a radius of 4.

(y-3)^2+(x-4)^2=2^2

Find the equation of a line with a slope of -2, and containing the point (3,-1).

y+1=-2(x-3)

Find the equation of the line that is parallel to the line x+y=2, and contains the point (1,-3).

y+3=-1(x-1)

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What is the center of a circle with an equation of (y-7)^2+(x+2)^2=3^2

center=7,-2

Determine the slope of the points (2,3) and (4,0).

-3/2

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