A line has slope 2 and y-intercept 3. What is y when x = 4?

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Multiple Choice

A line has slope 2 and y-intercept 3. What is y when x = 4?

This tests using the slope-intercept form of a line, y = mx + b. With a slope of 2 and a y-intercept of 3, the equation is y = 2x + 3. For x = 4, y = 2(4) + 3 = 8 + 3 = 11. So the value of y is 11. If you check the other numbers: 7 would come from x = 2, 9 from x = 3, and 13 from x = 5, which don’t match x = 4.

This tests using the slope-intercept form of a line, y = mx + b. With a slope of 2 and a y-intercept of 3, the equation is y = 2x + 3. For x = 4, y = 2(4) + 3 = 8 + 3 = 11. So the value of y is 11. If you check the other numbers: 7 would come from x = 2, 9 from x = 3, and 13 from x = 5, which don’t match x = 4.

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