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Slope=7;(4,-30)
what is the y-intercept
and what is the equation

User Kashiraja
by
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1 Answer

4 votes

Answer:

The y-intercept is -58

The equation is y=7x-58

Explanation:

We'll look for an equation of the form y=mx+b, where m is the slope and b the y-intercept (the value of y when x is 0).

We are given the slope and one point on a line. The slope, m, of 7 leads us to:

y=7x+b

We need a value for b that will force the line to go through point (4,-30). Enter that point in the above equation and solve for b:

y = 7x+b

-30 = 7(4)+b for point (4,-30)

-30 = 28 + b

b = -58 [b is the y-intercept]

The equation is y = 7x-58

See the attached graph.

Slope=7;(4,-30) what is the y-intercept and what is the equation-example-1
User Bhavesh Shah
by
8.6k points

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