Write an equation of the line with a slope of 3 and a y-intercept of 4.5.

Question

Kinda stuck need help on this problem.

Answer 1

slope = 3, y intercept = 4.5 = 9/2

y=mx + b where m= slope=3 and b= 9/2 = y intercept

y= 3x+ 9/2 multiply by 2 to eliminate the fraction

2y=6x + 9

or 2y-6x = 9

Answer 2

Hello,

You can solve by substituting the given numbers into the equation,

y = mx+ b

Answer 3

Hello Isabel.

You can use slope-intercept form here;

y = slope*x + y-intercept (just plug in the numbers)

y = 3x +4.5

hope that helps