y=-8x
To find x-intercept/zero, substitute y=0
0=-8x
solve the equation for x
x=0
now we do the same only different way ok
0=-8x
swap the sides of the equation
-8x=0
divide both sides of the equation by -8
x=0
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3 gallons of paint would cover 1050 square feet
Answer:
The answer is 40.5 which is D
Step-by-step explanation:
So the gradient is the negative reciprocal of the question so first you have to rearrange the equation into the form y = mx + c so you get 3y = - 5 x + 11 and then y = -5/3 x + 11/3. Now to find the gradient of the line perpendicular to it you do the negative reciprocal and get 3/5 x so now you have the equation y = 3/5 x + c . Now simply substitute your coordinate into the equation to get -2 = 3/5 x -2 + c and 3/5 x -2 is -1.2 so now you have 2 = -1.2 + c so c is 3.2 so your final equation is y = 3/5 x + 3.2 hope this helps :)
