Question

A group of students went on a hike and measured the change in elevation over the length of the trail. They plotted these data on the graph shown below. They wanted a shorthand way to describe the line that represents the trail. Which slope-intercept equation describes the line?
y - intercept = (0,2) slope = -1

A. y = -x + 2
B. y = x - 2
C. y = x + 2
D. y = -x - 2

Answer 1

ok so what do you know based on what we've gone over

Answer 2

y=mx+b
y and b are basically the same thing
and m is multiplied by x.

Answer 3

correct

Answer 4

but in this one there is no m?

Answer 5

y=mx+b is the standard form of a linear equation where m is slope (given in problem)
and b is y-intercept (also given in problem)
just substitute the values given into the equation

Answer 6

there is it is a negative 1 but the one doesn't have to appear just the negative sign

Answer 7

ok would it be A? -1*0+2?

Answer 8

yes

Answer 9

Ok!

Answer 10

:)