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Linear Functions Unit Review

Authored by Ms. Sigrid Gulbis

Mathematics

9th - 10th Grade

CCSS covered

Used 44+ times

Linear Functions Unit Review
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19 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

The point-slope form of the equation of the line that passes through (–9, –2) and (1, 3) is y – 3 = 1/2(x – 1). What is the slope-intercept form of the equation for this line?

y = 12x + 2y\ =\ \frac{1}{2}x\ +\ 2

y = 12x + 52y\ =\ \frac{1}{2}x\ +\ \frac{5}{2}

y = 12x 72y\ =\ \frac{1}{2}x\ -\ \frac{7}{2}

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which equation represents the line that passes through (–6, 7) and (–3, 6)?

y = 13x + 9y\ =\ -\frac{1}{3}x\ +\ 9

y = 3x + 5y\ =\ -3x\ +\ 5

y = 13x + 5y\ =\ -\frac{1}{3}x\ +\ 5

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Line CD passes through points C(3, –5) and D(6, 0). What is the equation of line CD in standard form?


Hint, Substitute both points and see which equation is true for both.

5x + 3y = 18

5x – 3y = 30

5xy = 30

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Tickets to a basketball game can be ordered online for a set price per ticket plus a $5.50 service fee. The total cost in dollars for ordering 5 tickets is $108.00. Which linear function represents c, the total cost, when x tickets are ordered?

c(x) = 5.50 + 20.50x

c(x) = 5.50x + 20.50

c(x) = 5.50 + 21.60x

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which equation represents a line that passes through (2, –1/2) and has a slope of 3?

y – 2 = 3(x + 1/2)

y – 3 = 2(x + 1/2)

y + 1/2 = 3(x – 2)

y + 1/2 = 2(x – 3)

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Alejandra correctly wrote the equation y – 3 = 1/5(x – 10) to represent a line that her teacher sketched. The teacher then changed the line so it had a slope of 2, but still went through the same point. Which equation should Alejandra write to represent the new line?

y – 6 = 2(x – 10)

y – 3 = 2(x – 10)

y – 3 = 1/5(x – 2)

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which is the graph of the equation?

 y  1 = 23(x  3)y\ -\ 1\ =\ \frac{2}{3}\left(x\ -\ 3\right)  

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