Question

Write the slope-intercept form of the equation parallel to y = 7x + 2, which passes through the point (1, -3).

Answer 1

parallel lines have equal slopes. What is the slope of y=7x+2 ?

Answer 2

The slope is 7.

Answer 3

Sorry for the late reply, hope u can still help.

Answer 4

yes. m= 7
so you have (so far)
y = 7 x +b

now you need to find b. the easy way is plug in (x,y) pair that is on the line. Luckily they tell us (1,-3) is on the line.

Answer 5

Yes, how do you find b? Do you plug -3 into y?

Answer 6

you use both x=1 and y= -3 in y=7x+b
then you solve for b.

Answer 7

I got b = -10.

Answer 8

-3= 1*7+b or
-3= 7+b

to get b by itself, subtract 7 from both sides (or add -7 to both sides)
b= -10

Answer 9

so the equation is
y= 7x-10

Answer 10

ohh okay! thank you so much @phi

Answer 11

Now try to remember all the details, and you can solve all of these type problems.

Answer 12

Okay.