Question

A straight line has equation 8y = 4x + 21. Which of the following is true

Options

• The slope is 0.5 and the y intercept is 2.6

• The slope is 5 and the y intercept is 1.6

• The slope is 0.5 and the y intercept is 1.6

• The slope is 5 and the y intercept is 2.6

Answer 1

The slope is 0.5 and the y intercept is 2.6

Explanation;

Hint:

8y = 4x + 21

y = `4/8x + 21/8`

= `1/2 x + 21/8`

`1/2` = 0.5

`21/8` = 2.625

Slope = `1/2` = 0.5

y intercept = `21/8` = 2.6