8th Period Algebra Chapter 4 Review P2

Front

Is the point \( (9, 6) \) a solution for \( x = 9 \)?

Back

Solution

Front

What is the slope of the line \( y = -18x - 9 \)?

Back

-18

Front

Is the point \( (-7, 0) \) a solution for \( y = -7 \)?

Back

Not a solution

Front

What is the y-intercept of the line \( y = -18x - 9 \)?

Back

-9

Front

Find the slope between the two points \( (-3, -2) \) and \( (-3, 6) \).

Back

Undefined

Front

What is the definition of slope in a linear equation?

Back

Slope is the ratio of the rise (change in y) to the run (change in x) between two points on a line.

Front

How do you find the y-intercept of a linear equation?

Back

Set \( x = 0 \) in the equation and solve for \( y \).

Front

What does it mean for a point to be a solution to an equation?

Back

A point is a solution if it satisfies the equation when the coordinates are substituted.

Front

What is the formula for calculating the slope between two points \( (x_1, y_1) \) and \( (x_2, y_2) \)?

Back

Slope = \( \frac{y_2 - y_1}{x_2 - x_1} \) if \( x_2 \neq x_1 \).

Front

What is the significance of the y-intercept in a linear equation?

Back

The y-intercept is the point where the line crosses the y-axis, indicating the value of \( y \) when \( x = 0 \).