Linear graphs and equations quiz

Consider the equation of the line

y = −2x + 4.

What is the value of y when x = 2?

• 1

• 2

• 0

• 4

Consider the equation of the line

y = 2x + 5

Does the point (3, 12) lie on the line?

• Yes

• No

• No idea

Consider the equation

5x − 2y = 10

Find the value of x when y = 5

• 2

• 0

• 5

• 4

Two points P (2, 5) and Q (4, 13) lie on the same line. Calculate the gradient of the line

• 4

• 3

• 1/3

• -2

Which graph represents

y - 3x = 12?

• 
• 
• 
• 

What is the gradient and the y-intercept of the straight line

y=x/3+14

• m = 3, c = 14

• m = x/3, c = 4

• m = 14, c = 1/3

• m = 1/3, c = 14

What co-ordinate do these two lines cross over?

y = 2x + 5

y = 7 + 3x

• (1,2)

• (-2,1)

• (-2,-1)

• (-1,-2)

Fill in the missing co-ordinates for

y = 2x + 7

([ ], 6), (2, [ ]), ([ ], 4)

• (-2,6), (2, -1/2), (3,4)

• (3/2,6),(2,13),(1,4)

• (-1/2,6),(2,15),(-3/2,4)

• (2,6),(2,15)(2,4)

What is the x-intercept of the x and y co-ordinates above?

• 10/6

• -10/6

• 6/10

• -6/10

Visa car rentals charge $75 per day with an initial signing fee of $15. Write a linear equation using d as the amount of days and C as the cost.

• d = 75C + 15

• C = 75d + 15

• C = 15d + 75

• C = 90d