AND ANSWERS
Determine the slope and the y-intercept. Use the slope and the y-intercept to graph the
equation. Use a graphing calculator to verify your work.
y=4x-8 - ANSWERSSlope is m=4
Y-intercept= (0,-8)
Determine the slope and the y-intercept. Use the slope and the y-intercept to graph the
equation.
y=1 - ANSWERSSlope is m= 0
Y-intercept= (0,1)
Use the graphing tool to graph the linear equation. Use the slope and y-intercept when
drawing the line.
2x+y=1 - ANSWERS
Determine the slope and the y-intercept. Use the slope and the y-intercept to graph the
equation. Use a graphing calculator to verify your work.
9x-12y=84 - ANSWERSThe slope is: 3/4
The y-intercept is (0,7)
Determine the slope and the y-intercept. Use the slope and the y-intercept to graph the
equation. Use a graphing calculator to verify your work.
-21=4x+7y - ANSWERSThe slope is m= -4/7
The y-intercept (0,-3)
Determine the slope and the y-intercept. Use the slope and the y-intercept to graph the
equation. Use a graphing calculator to verify your work.
5x+3y=0 - ANSWERSThe slope is -5/3
The y-intercept is (0,0)
Determine the slope and the y-intercept. Use the slope and the y-intercept to graph the
equation. Use a graphing calculator to verify your work.
y-5=0 - ANSWERSThe slope is m=0
The y-intercept is (0,5)
, Find the approximate x-intercept and the approximate y-intercept of the equation below.
6.1x+3.7y=9.9 - ANSWERSThe x-intercept of the given equation is (1.62,0)
The y-intercept of the given equation is (0,2.68)
A student thinks the graph of 6+7x=6 has slope 7 because the coefficient of the 7x term
is 7. Is the student correct? If yes, explain why. If no, find the slope. - ANSWERSThe
student is incorrect. The slope is -7/6
Determine whether the relation is a function. Explain.
3x-8y=16 - ANSWERSYes, because the equation can be written in the form y=mx+b,
where m and b are constants.
Determine whether the relation is a function. Explain.
x=6 - ANSWERSNo, because the graph of the relation is a vertical line and so there is a
vertical line that intersects its graph at more than one point.
Determine whether the relation is a function. Explain.
4x-5y=29+5(y-2x) - ANSWERSYes, because the equation can be written in the form
y=mx+b, where m and b are constants.
Decide whether the relation is a function. Explain.
-6y^4=x - ANSWERSNo, because there are some inputs that lead to more than one
output.
Evaluate f(x)=4x+4 at the given value of x.
f(5) - ANSWERSf(5)=24
Evaluate g(x)=2x-9 at the given value of x.
g(b+1) - ANSWERSg(b+1)= 2b-7
Evaluate g(x)equals=2 x squared -5 x at the given value of x.
g(-3) - ANSWERSg(-3)= 33
For g(x) =- 3 x squared +2x find the following.
g(-5) - ANSWERSg(-5)= -85