What is the slope intercept form of the equation of the line that passes through the points (2,7) and (4,-1)
2 answers:
Answer:
y = -4x + 15.
Step-by-step explanation:
The slope = (-1-7)/(4-2)
= -8/2
= -4.
So we have:
y = -4x + b
To find b, we plug in the point (2, 7):
7 = -4(2) + b
b = 7+8 = 15.
So the equation is
y = -4x + 15.
Slope intercept form is y = mx + b.
Y = coordinate y.
M = Slope
X = coordinate x.
B = y-intercept.
Slope formula: (y2-y1) / (x2-x1)
Plug in: (-1 - 7) / (4 - 2) = -4.
We can just insert the pair (2,7) as our x and y to solve b.
7 = -4(2) + b.
Solve for b.
7 = -8 + b.
-b = -8 -7
-b = -15
b = 15.
Original equation:
y = mx + b
y = -4x + 15
You might be interested in
Area=legnth times width
if legnth=x
and
area=400
400=x times width
wait
SQUARE painting
legnth=width
width=x
400=x times x
400=x^2
sqrt both sides
20=x
answer is 20 in
equation is
400=x times x
Answer:
Your Answer is the second option, could i get brainliest?
Answer:
<
Step-by-step explanation:
Have a Great Day!!!
The graph lines stay the same, however the y-intercept changes from (-1,0) to (-2,0), since it is now g(x) = x - 2, instead of f(x) = x - 1.
Answer:x=2 y=3
Step-by-step explanation:
