Question 1

Which of the following is not a linear function?

Accepted Answer

$y = \frac{-12}{x}$

Answer

$y = \frac{3}{2}(x - 2)$

Answer

y - 4x = 0

Answer

$y =-8x+3$

Question 2

Which of the following is a linear function?

Accepted Answer

0.5(2y - 4x) = 5

Answer

None of the answer

Answer

$y = 3x^2$

Answer

xy = 10

Question 3

Which of the following is y a linear function of x?

Accepted Answer

The remaining quantity of flour y g after using x g of 300 g

Answer

Surface area $y cm^2$ of a sphere with a radius of x cm

Answer

The time taken y  h after traveling 10 km at  x km/h

Question 4

Which of the following is y a linear function of x?

Accepted Answer

Distance y km traveled for x h at a speed of 4 km/h

Answer

The length y cm of a rectangle with area  $28 cm^2$, width x cm

Answer

It takes y (s) to run 400 m at a speed of x m/s

Question 5

State the rate of change of y = -2x + 5 and also if the y-value increases or decreases as x increases.

Accepted Answer

-2  ; decreases

Answer

-2  ; increases

Answer

2  ; increases

Answer

2 ; decreases

Question 6

For the linear function y = -6x - 5, find the increase in y when the increase in x is 5.

Accepted Answer

Increase is -30

Answer

Increase is 30

Answer

Increase is 35

Answer

Increase is -35

Question 7

For the linear function y = 0.75x + 1, find the increase in y when the increase in x is 4.

Accepted Answer

Increase is 3

Answer

Increase is -3

Answer

Increase is 1

Answer

Increase is -1

Question 8

For the linear function y = -4x + 1, find the increase in x when the increase in y is -4.

Accepted Answer

Increase is 1

Answer

Increase is 3

Answer

Increase is -1

Answer

Increase is -3

Question 9

When the x value goes from -2 to 4 in y = ax -7, the increase in y is -12. Find the value of a.

Accepted Answer

-2

Answer

-1

Answer

1

Answer

2

Question 10

Which of the following is correct?

Accepted Answer

f: y=4x+1   and g: y=2x+1

Answer

f: y=2x+1   and g: y=4x+1

Answer

f: y=3x+1   and g: y=x+1

Answer

f: y=2x+1   and g: y=4x+1

Question 11

Which of the following is true about the linear function with the table of values for x and y?

Accepted Answer

It rises 3 every time it goes 1 to the right of  the x axis

Answer

It rises 6 every time it goes 1 to the right of  the x axis

Answer

It rises 3 every time it goes 2 to the right of  the x axis

Answer

It rises 6 every time it goes 2 to the right of  the x axis

Question 12

Which of the following statment is true about the line?

Accepted Answer

The line rises -2 every time it goes 1 to the right

Answer

The line rises 2 every time it goes 1 to the right

Answer

The line rises 2 every time it goes 2 to the right

Answer

The line rises -2 every time it goes 2 to the right

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