# x-intercept - SchoolNotes ```Review for Midchapter Quiz
Chapter 2
1. (Look to the whiteboard!)
2. Find the x-intercept and the y-intercept of each line.
a. X – 3y = 9
b. Y = 6x
3. Write the equations of each line is slope-intercept
form and identify the slope.
a. 2x – y = 9
b. 5y = -3x – 10
4. Write an equation of each line in standard form with
integer coefficients.
a. The line through (2, 3) and (4, 5)
b. The line through (3, 1) with slope 0
c. The line with slope 2/3 and y-intercept (0,5)
d. 2/3 x + 3 = 6y – 15
5. Write an equation of each line in point-slope form.
a. (-4, 2) and (-3, 5)
b. (0, 0) and (-4, -5)
6. Graph each equation.
a. 2y = 4x + 8
b. 4y – x = 16
7. For each function, determine whether y varies
directly with x. If so, identify the constant of
variation.
a. 2y = 3x
b. Y + &frac34; x = 12
8. Do you understand?
a. A group of friends is going to the movies. Each
ticket costs \$8.00. Write an equation to model the
cost of the group’s tickets.
b. Graph the equation. Explain what the x-intercept
and the y-intercept represent.
c. What would be the cost for 12 tickets?
d. Could the domain include fractions?
9. Which line is perpendicular to 3x + 2y = 6?
a. 4x – 6y = 3
b. Y = -3/2 x + 4
c. 2x + 3y = 12
d. Y = 3/2 x + 1
10. Why is the slope of a vertical line undefined?
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