Write the equation of a line with the slope -3 and y-intercept of 5 O y = 5x + 3
O y = -5x + 3
O y = 5x - 3
O y = -3x + 5

Step-by-step explanation:

You are given the slope and the y-intercept of the line; so you can substitute these values into slope-intercept form: ;

Plugging these values into slope-intercept form gives:

We are given the slope and a point that the line passes through, so we can use the point-slope equation to find the slope-intercept form of the line.

The point that the line passes through is the y-intercept: .

Point-slope form:

where are the coordinates of the point that the line passes through and

Substitute and into the point-slope form equation.

Simplify the equation on both sides.

Add 5 to both sides of the equation.

This is in slope-intercept form: , so we are done.

The answer is .

answer: 21$

step-by-step explanation:

$42 / $14 = 3   (ratio 3: 1)

$7 x 3 = $21