7
QuizMultiple Choice

Slope-Intercept Form

Question 7 • Q1 Mathematics 8

Adriana writes the equation y = 2x + 4 to represent a line on a graph. Henry writes an equation that has a y-intercept that is 1 unit lower on the graph but has the same slope as Adriana’s line. Which is Henry’s equation?

Answer
y
y = x + 4
y
y = 3x + 4
y
y = 2x + 3
y
y = 2x + 5

Explanation

In slope-intercept form, y = mx + b, the slope is m and the y-intercept is b. Adriana’s equation y = 2x + 4 has slope 2 and y-intercept 4. Henry needs the same slope and a y-intercept 1 lower, which is 3, so his equation is y = 2x + 3, choice C.

AI-written and checked against the verified answer.

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