Question

Write an equation of a line that passes through the point (0, 4) and whose slope is 4.
A. y = x + 4
B. y = 4x + 4
C. y = x – 4
D. y = x

Answer 1

Equation of a line with slope and one point is given by:

\[\large \color{green}{(y-y_1) = m(x-x_1)}\]

Answer 2

EQUATION OF THE LINE, MEMORIZE!!!!
y = mx+b

m = slope
b = y-intercept

we know slope so just plug into equation with the point

Answer 3

Here m = 4 and \(x_1 = 0\), \(y_1 = 4\)

Answer 4

so we have

y = 4x + b

solve for b by subbing in the point into the equation,

(0,4)

Answer 5

remember,

(x, y)

Answer 6

y=4x+ 4?

Answer 7

yes

Answer 8

thank you