HELP!!! a line has a slope of -2/3 and a y-intercept of (0,3).What is the value of y when x=4?

Question

anonymous · Answer

HELP!!!

anonymous · Answer

$$y = mx + b $$ where m is the slope and b is the y-intercept
$$y = -2/3(4) + 3$$$$\rightarrow y = \frac{-8}{3} + \frac{9}{3}$$
the 9/3 represents the 3
$$y = \frac{1}{3}$$

anonymous · Answer

do you just plug in a random number then simplify and work from there?

anonymous · Answer

you just plug in the x value. Because it's y = slope (x value) + y-intercept.
You had the slope and the y-intercept, so you just had to plug in the x value and solve for y.

anonymous · Answer

ooooooooooohhhh i get it!!
Thank you!!

anonymous · Answer

cool :) no problem