Question

write an equation in slope- intercept form for the line that satisfies each set of conditions.
30. passes through (7,1) and (7,8)
32. passes through(-2, -3) and (0,0)

Answer 1

y_2-y_1=m(x_2-X_1)

Answer 2

I need the answer in y intercept for

Answer 3

can you find the slope of the line..?

Answer 4

I do, but don't have time to do it and the teacher wants answers only no work shown

Answer 5

ok... if you know the slope use

y = mx + b

substitute the x and y values from a point to evaluate b

Answer 6

at least I will give you a medal for it

Answer 7

well if you don't have time to find the slope you can't find the equation

Answer 8

if you tell me the steps

Answer 9

can you just tell me the answer

Answer 10

whats the slope in 30...?

32 has a slope of 3/2

Answer 11

30 is undefined in slope

Answer 12

for 32.

y = 3/2 x + b

use the point (0, 0) x = 0 and y = 0

to find b, substitute

0 = 3/2* 0 + b

b = 0

therefore the equation is y = 3/2x

just do the same for 30, you said you knew the slope

Answer 13

so what which lines have an undefined slope..?

Answer 14

x

Answer 15

what's the y - intercept