Question

How do you write the equation of a line with slope 0.5 and y-intercept 7.5?

Answer 1

`y=0.5x+7.5`

Explanation:

`"the equation of a line in "color(blue)"slope-intercept form"` is.

`•color(white)(x)y=mx+b`

`"where m represents the slope and b the y-intercept"`

`"here " m=0.5" and " b=7.5`

`rArry=0.5x+7.5" is the equation of the line"`

Answer 2

y = 0.5x + 7.5 or 2y = x + 15

Explanation:

The y intercept form of an equation is

`y = mx + b`

m = slope ( think mountain ski slope)

b = y intercept ( Thing beginning where x is zero)

so

m = 0.5

b = 7.5 so

y = 0.5 x + 7.5 multiplying by 2 removes the decimal fractions. so

2y = x + 15