Question

A line has a slope of 2 and a y-intercept of (0, -4). What is the value of y when x = 6?

Answer 1

they are linear equations.

Answer 2

Do you know what the slope-intercept form of a line is? If so, you can literally drop the slope, x-value, and y-intercept given in the problem right into it, then solve for y. :)

Answer 3

so is it..

Answer 4

y=2x-4 ?

Answer 5

y = 2x - 4 is the equation of the line.

Now let x = 6 in the above equation and solve for y. :)

Answer 6

y=12-4
y=8

Answer 7

You got it! :D

Answer 8

so i did the same thing for another problem...."A line has a slope of -2/3 and a y-intercept of (0, 3). What is the value of y when x = 4?"

Answer 9

i got the answer y=5.666 is this correct?