Algebra 1 Midterm Review

Front

What is the equation of a line given a slope of 3 and a y-intercept of 9?

Back

y = 3x + 9

Front

How do you express the sum of four consecutive odd integers?

Back

x + (x + 2) + (x + 4) + (x + 6) = 232

Front

What is the slope of the line represented by the equation 2y - 10x - 5 = 0?

Back

5

Front

Which set of ordered pairs represents a function?

Back

(6,-5), (7,-3), (8,-1), (9,1) - Each x-value is unique.

Front

How do you find the x-intercept of the equation 3x + 8y = 24?

Back

Set y = 0, then solve for x: (8, 0).

Front

What is the definition of a function in mathematics?

Back

A relation where each input (x-value) has exactly one output (y-value).

Front

What is the formula for the slope of a line given two points (x1, y1) and (x2, y2)?

Back

Slope (m) = (y2 - y1) / (x2 - x1).

Front

How do you convert the equation 2y - 10x - 5 = 0 into slope-intercept form?

Back

y = 5x + 2.5.

Front

What is the x-intercept of the line represented by the equation y = 2x + 4?

Back

Set y = 0: 0 = 2x + 4, x = -2, so the x-intercept is (-2, 0).

Front

What is the definition of consecutive integers?

Back

Integers that follow each other in order, e.g., 1, 2, 3 or 5, 6, 7.