Question

Find the y-intercept of the linear functions with a slope -4 and the point ( 2, 20 )
need asap

Answer 1

y=mx+c. y=20

x=2

m=-4

20= -4(2)+c

20= -8+c

20+8=c

28=c

Answer 2

`\huge\boxed{\sf b = 28}`

Explanation:

Point (x,y) = (2,20)

So, x = 2 and y = 20

Also,

Slope = m = -4

Slope-intercept equation:

y = mx + b

Where b is y-intercept.

Put the above given data in this equation.

20 = (-4)(2) + b

20 = -8 + b

Add 8 to both sides

20 + 8 = b

28 = b

b = 28

`\rule[225]{225}{2}`