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1. Write an equation for a line that has a slope of 4 and passes through the point (-4, 7).
Question
1. Write an equation for a line that has a slope of 4 and passes
through the point (-4, 7).
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Mathematics
3 years
2021-09-05T16:41:46+00:00
2021-09-05T16:41:46+00:00 1 Answers
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Answer:
(y – 7) = 4(x + 4) or y = 4x + 23
Step-by-step explanation:
In point- slope form, the equation of a line is (y – y₁) = m(x – x₁)
The slope is given as 4, and so is point (x₁ , y₁). Substitute (-4, 7) as (x₁ , y₁), and do not forget to change the sign to a positive when you get a double negative.
(y – 7) = 4(x + 4) can further be expanded to slope- intercept form as y = 4x + 23