Write the equation if the line that passes through (4,5) and has a slope of m=3
1 answer:
Answer:
y = 3x - 7
Step-by-step explanation:
The <em>point-slope formula </em> for a straight line is
y – y₁ = m(x – x₁)
x₁ = 4; y₁ = 5; m = 3 Substitute the values
y – 5 = 3(x - 4) Remove parentheses
y – 5 = 3x - 12 Add 5 to each side
y = 3x - 7
The graph is a straight line with a y-intercept at y = -7 and a slope = 12/4 = 3.
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