CP Warm up flashcard

Front

What is the color of the sky on a clear day?

Back

Blue

Front

What does the y-intercept represent on a graph?

Back

The point where the graph intersects the y-axis.

Front

How do you calculate f(1) if f(x) = -4x - 5?

Back

Substitute x with 1: f(1) = -4(1) - 5 = -9.

Front

What is the formula for slope-intercept form?

Back

y = mx + b, where m is the slope and b is the y-intercept.

Front

How do you find the slope from a linear equation?

Back

Rearrange the equation into slope-intercept form (y = mx + b) to identify m.

Front

What is the slope of a line that rises 2 units for every 1 unit it runs?

Back

The slope is 2.

Front

What is the y-intercept of the line represented by the equation y = 2x - 3?

Back

The y-intercept is -3.

Front

How do you convert the equation 5x - 3y = -9 into slope-intercept form?

Back

Rearrange to get y = (5/3)x + 3.

Front

What does a negative slope indicate about a line?

Back

It indicates that the line descends from left to right.

Front

What is the significance of the y-intercept in a real-world context?

Back

It often represents the starting value in a situation modeled by the equation.