Question

A line passes through the point (–2, 7) and has a slope of –5.

What is the value of a if the point (a, 2) is also on the line?
–7
–1
1
7

Answer 1

The value of A would be:
-1

Explanation:

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Answer 2

the equation of the lin is

y - 7 = -5(x + 2)

When x = a and y = 2 we have:-

2 - 7 = -5(a + 2)

-5 = -5(a+ 2)

a + 2 = 1

a = -1 answer