Question

what is the slope and y-int of this chart

Answer 1

x|y
-2|-2
2 | 10
6 | 66

Answer 2

we can use y2-y1/x2-x1 to find the gradient. would u be able to do that for me on here,

Answer 3

10-(-2)/ 2-(-2)

12/4

Answer 4

awesome. so we can say m=3

Answer 5

now we can use y=mx+c
plug in the m value
y=3x+c
then lets use a coordinate (2,10). plug it into the x and y value and solve for c

Answer 6

can u do it on here so that i can see wht your thinking

Answer 7

10=3x+c (im guessing 2??)
-2 -2
8=3x

Answer 8

lets substitute (2, 10) into (x,y)
y=3x+c
10=3(2)+c

Answer 9

10=6+c

Answer 10

so c = 4 y-int = 4

Answer 11

yes and ur equation is y=3x+4.